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import json
import pandas as pd
import great_expectations as ge


    

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# df = ge.read_csv("data/broken_timestamp_example.csv")

#Here's the dataframe
df_as_json = {
    "other_var":[13,14,10,13,14],
    "date_var":["2014-09-01","2014-10-30","2014-07-31","2014-09-01","2014-10-30"]
}

df = pd.DataFrame(df_as_json)
df = ge.dataset.pandas_dataset.PandasDataset(df)
df.head()


    

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df.expect_column_values_to_be_dateutil_parseable('date_var')


    

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df.dtypes


    

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df.date_var[0]


    

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df["date_var_dt"] = pd.to_datetime(df.date_var)


    

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df.expect_column_values_to_be_dateutil_parseable('date_var_dt')


    

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df.dtypes


    

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?df.expect_column_value_lengths_to_be_between


    

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df.expect_column_values_to_be_between(min_)